You are right, but unfortunately you are the least useful right, which is technical right.
That is definitely what auto pilot means in the aeronautical and maritime sphere.
But a lot of the general public has a murky understanding of how an auto pilot on a ship or a plane works. So for a lot, probably the majority of them. They will look at the meaning of those two words and land on that auto pilot, means automatic pilot. Which basically ends up beeing self driving.
Sure in a perfect world, they would look up what the term means in the sphere they do not know, and use it correctly, but that is not the world we live in. We do not get the general public, we want, but we have to live with the one we got.
You are also merely technically right. It would require an intentional suspension of one's theory of mind to not recognize the extent to how Tesla's own marketing of its products, and its determination to hide pertinent information in cases like this, is intended to perpetuate the popular misconception of its capabilities.
> ...we have to live with the [the world] we got.
There was nothing inevitable in how we reached this situation, and no reason to let it continue.